我的笔袋 英语短文
题目
我的笔袋 英语短文
答案
My Pencil Bag
Different sthdent has different pencil case or bag.Look,this blue bag is mine.There are three pencils,a ruler,an eraser and a pencil sharpener in it.It's a gife from my mom for my birthday.I like my pencil bag so much that I always take it with me.How about yours?Can you tell me something about your pencil cases or bags?
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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